Engine Controls - Self-Diagnostics Introduction- EEC-V - Gasoline & NGV: Introduction

NOTE: Information for Escort applies to Escort ZX2 unless otherwise indicated.

NOTE: This article covers flex-fuel, gasoline & NGV vehicles with EEC-V systems only. For Bi-Fuel (CNG and GASOLINE, or LPG and GASOLINE) vehicles with EEC-V systems, go to SELF-DIAGNOSTICS - EEC-V - BI-FUEL article.

Perform all basic diagnostic procedures in appropriate BASIC DIAGNOSTIC PROCEDURES article. If no fault is found while performing basic diagnostic procedures, proceed with self-diagnostics. If no Diagnostic Trouble Codes (DTCs) or only pass codes are found during self-diagnostics and symptom is present, proceed to TROUBLE SHOOTING - NO CODES - EEC-V - GASOLINE & NGV article for diagnosis by symptom.